Powder Booth Selection and Guidelines Booth Sel Guidelines.pdfand dry air to the powder booth. ü A...

Todays Webinar: Powder Booth Selection and Guidelines

Powder Booth Selection and Guidelines

Presented By: Bill Van BurenRegional Sales Manager

Three Main Business Segments:

2. Engineered Projects (EP)

3. RP Filtration Products

1. Core / Catalog Equipment


• Function of a Powder Booth• Types of Col-Met Powder Booths• Powder Booth Sizing• Other Consideration

ü Environmental Roomsü Air Movementü Compressed Air Qualityü Groundingü Filter Replacement

• Return On Investment

Presentation Overview:

• Contain oversprayed powder.

• Provide for safe operating environment.

• Collect oversprayed powder for either reuse or disposal.

• Enhance application efficiency.

Function of a Powder Booth:



• Powder containment is accomplished by drawing air produced by a fan with sufficient velocity through all the booth enclosure openings.

• The overspray powder and air mixture in the booth enclosure is drawn into the collection device where either filter(s) or a cyclone separates the powder from this contaminated air.

• Cleaned air is then directed through a final filter to remove any particulate before returning air to the plant.

• The overspray powder collected in the recovery unit is reclaimed and reprocessed into the system.

• This process may be as simple as collecting and discarding the recovered powder (referred to as spray to waste) or mixing the recovered powder with virgin powder and supplied back to the system to feed the powder application equipment (referred to as reclaim).

• Typically “Reclaimed” powder is blended with virgin powder before being applied to the product.

Powder Booth Operation:

Feed Hopper

Rotary Sieve

Cartridge Filter

Collector with Color Module

Fan

Work pieceSpray Booth

Powder Spray Gun

Spray Gun Powder Supply

Final Filter

Drum Unloader

Transfer Pump

Cartridge Booth

10


Cyclone separator utilizes centrifugal forces to separate hard powder particles from the air stream

Types of Powder Booths:

• Pass Through Powder BoothsüCOL-MET EPB Series: cartridge filtration

• Batch Powder BoothsüCOL-MET PB Series: multi stage filtrationüCOL-MET RPB Series: cartridge filtration


• Batch style, entry level booth

• Low volume applications

• Basic controls (optional VFD)

• “Spray to waste”

• Multi-stage filtration1. Blanket filter2. Pocket filter

3. Final filter

1

3

2

Types of Powder Booths: COL-MET PB Series


Types of Powder Booths: COL-MET RPB Series

• Batch style, entry level booth• Low – Medium volume / production

rates• “Spray to waste” or reclaim of one

color• Powder collected below cartridge filter

in pan


• Multi-Stage Filtration• Cartridge Filter• Final Filter

• Controls: Nema 12, UL, ETL• Auto or manual filter pulse down• Magnehelic gauge for cartridge

monitoring• VFD for fan motor• Pressure switch for final filter

Powder Booth Selection and GuidelinesTypes of Powder Booths: COL-MET RPB Series

Powder Booth Selection and GuidelinesTypes of Powder Booths: COL-MET LPB Series

• Pass through booth• High production rates• 3 standard sizes• E-Light LED Lighting• “Spray to waste” or reclaim• Multiple booths or collectors can

be used to meet color change needs

Powder Booth Selection and GuidelinesTypes of Powder Booths: COL-MET EPB Series

• Multi-Stage Filtration• Cartridge Filter• Final Filter

• Controls: Nema 12, UL, ETL• Auto or manual filter pulse down• Magnehelic gauge for cartridge

monitoring• VFD for fan motor• Pressure switch for final filter


• Single Booth• Always on-line• Spray to waste or reclaim

• Color change, system down

• Dual / Multi-Booth• Booth moved on/off-line• Spray to waste or reclaim

• Color change time minimal


• Wedge collector design


Types of Powder Booths: Pass Through


COL-MET Powder Booth Summary3 Stage filtration (PB) Reclaim (RPB) Pass Through (EPB)

Low production Medium Production High Production

No reclaim Reclaim capabilities of one color Reclaim and multiple Color change capable

Higher Maintenance costs (Filters)

Reduced Maintenance costs Reduced Maintenance costs and high production

Entry level users Entry level users andexperienced users

Experienced users with multiple colors

Manual applications Manual applications Automatic and/or manual application capabilities

No VFD (less control of air flow) VFD included (Precise air flowcontrol)

VFD included (Precise air flowcontrol)


Sizing Powder Booths: Batch System• It is desirable to have 3 - 5’ of working area

around the product for operator movement

• Air velocity at the product should be

between 80 -120 LFPM

80 sq.ft. x 80 fpm face velocity = 6,400 cfm

100 fpm face velocity = 8,000 cfm

120 fpm face velocity = 9,600 cfm

• Face Opening: 8'H x 10'W = 80 sq.ft.


Conveyor Slot (20’ X 4”) = 6.7 Ft2

Part Opening (6’ X 3’ X 2) = 36 Ft2

Include each end of booth

Gun Slots (7.5’ X 4” X 4) = 10 Ft2

4 slots on this booth

Operator Opening (2.5’ X 4’ X 2) = 20 Ft2

One on each side

Total of all openings = 72.7 Ft2

Sizing Powder Booths: Pass Through• Total air flow required to contain powder in any booth:

= Total Opening Area x Face Velocity Through all Openings.


• 72.7 Ft2 opening x 080 fpm face velocity = 5,816 cfm




Powder Booth Selection and GuidelinesSizing Powder Booths: Pass Through

Additional Guidelines:• Part Clearance at booth openings

ü 6” (minimum) all sides

• Part Hook Lengthü 36” (minimum) from part to conveyor rail

• Control parametersü Temperature 60 – 80 degrees F

ü Humidity 40 – 60% RH

ü Dirt and contaminants minimized• Benefits of controlled environment

ü Fluidization

ü Powder flow & material handling.ü Application charging

• Faraday application• Impact fusion• First pass transfer efficiency

Other Considerations: Environmental Room


Other Considerations: Cross Drafts < 60 FPM


Col-Met Cartridges provide with RPB an EPB series booth:• Height: 52.00" • Outside diameter: 12.74" • Filter Media Area: 397 ft 2

ü 2.5 Air to Cloth Ratioü 1,000 CFM per filter

Filter “Seasoning”• Is it required? Yes / No?• 80/20 blend, Cellulose / Polyester

Other Considerations: Replacement Cartridges


Filter Seasoning? • New powder cartridges will allow for a more

aggressive air flow which in some cases may cause damage to the new filters.

• The best way to “season” Col-Met Cartridge filters is to utilizing the incorporated VFD to slow down the linear air flow from 120 / 100 LFPM to 65 LFPM face velocity which will assure proper filter loading.

• Be sure to maintain factory blow down settings on the cartridge collector. DO NOT turn off the blow down process while pre-loading or seasoning filters.

Powder Booth Selection and GuidelinesOther Considerations: Replacement Cartridges

• It is the end-user's responsibility to provide clean and dry air to the powder booth.ü A Refrigerated or Desiccant Style Air Dryer Must be

dedicated to the powder booth and powder application equipment.

ü After Air Dryer you need coalescing filter package to removes oil and large particulate.

ü This is the most common issue for powder system failure.

• If your customer does not designate a proper air dryer and filter coalescing system to the Col-Met Powder Booth and the system is damaged by moisture or oil the Col-Met Warranty is void.

Powder Booth Selection and GuidelinesOther Considerations: Clean / Dry Air

Ground is measured in mega ohm'sü Only a mega-ohm meter can be used to

measure this.

ü A MULTIMETER CANNOT PROPERLY ACCOMPLISH THIS! It does not have sufficient energy to overcome contact resistance.

ü “Ground” is considered good at 1 mega ohm or less of resistance between part and true earth ground (NFPA Requirement)

Other Considerations: Booth / Part Grounding


Return On Investment


Who to Call?

Thank-you!

Powder Booth Selection and Guidelines Booth Sel Guidelines.pdfand dry air to the powder booth. ü A...

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